Dar al-Islam vs geographic area

Dar al-Islam and geographic area both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dar al-Islam	Yes	No	No	No
geographic area	Yes	No	No	No

As nouns, geographic area is a hypernym of Dar al-Islam; that is, geographic area is a word with a broader meaning than Dar al-Islam:

Other hypernyms of Dar al-Islam include geographic region, geographical area, geographical region.

Dar al-Islam (noun)	geographic area (noun)
areas where Muslims are in the majority	a demarcated area of the Earth